The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2009
Filed:
Oct. 18, 2006
Applicant:
Mikihiro Kajita, Tokyo, JP;
Inventor:
Mikihiro Kajita, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
To provide a signal measuring circuit that measures a signal, such as noise, with high precision. A maximum reference value and a minimum reference value are generated based on the voltage level of a signal, the voltage difference between the maximum reference value and the minimum reference value is divided, a reference value is generated according to the divided voltage, and the voltage level of the signal is compared with the reference value, thereby measuring the signal.